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The Basics of An Annulment

Published: March 17, 2016

Last Updated: September 9, 2025

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The Basics of An Annulment

Question: I don’t want to get divorced. Can I get an annulment instead?

Answer: Annulments are different from divorces. A divorce is the legal end to a marriage, granted by a Judge. In Canada, you can obtain a divorce if there is a breakdown in the marriage, based on one of three grounds: living separate and apart from your spouse for at least one year, cruelty (treating your spouse with mental or physical cruelty that makes it no longer possible to live together) or adultery (cheating on your spouse). An annulment is a declaration from the Court that your marriage never existed from the start, as if you were never married. It means that, at the time the marriage occurred, there was some defect that prevented the marriage from being valid.

Obtaining an annulment is not that common because there are very specific criteria that must be met before you marriage can be annulled. In order to obtain an annulment of your marriage, you must meet one of the following grounds for annulment:

You could seek an annulment on the grounds that your marriage lacked formal validity, meaning that there was a legal defect in the marriage ceremony (i.e. the person who performed the marriage was not authorized to do so).

You could also seek an annulment on the grounds that your marriage lacked an essential validity. This means that one or both parties to the marriage lacked capacity to get married. There are five reasons why the Parties could lack the capacity to get married:

1. The spouses are unable to consummate the marriage.

To be clear: the Parties are unable to have sexual relations with one another.

2. One of the parties to the marriage was already married to someone else at the time of this marriage, and that prior marriage has not ended in divorce or annulment.

Under Canadian laws, you cannot be married to two people at the same time. I recommend confirming that you have a Divorce Certificate (or at least a Divorce Order that is more than thirty-one (31) days old) or a declaration that your previous marriage was annulled if you were previously married to confirm that you are no longer married to your previous spouse.

3. The parties are related.

You cannot marry a parent, a sibling or half sibling, even if they are adopted.

4. One of the parties is underage.

You need to be at least sixteen (16) years old to get married in Ontario, as long as you have consent from your parents or if you are an emancipated minor.

5. One of the parties could not properly consent to the marriage.

If a party was forced under duress into the marriage, or if fraud or mistake was involved (i.e. you thought you were marrying the love of your life but through a prank switch, you married his identical twin brother instead), then this affects a person’s ability to properly consent to the marriage.

The length of a marriage does not factor into determining whether or not spouses can obtain an annulment if the spouses cannot prove that one of the above invalidities existed. If you are married for a short period of time, it does not mean that you can obtain an annulment, unless you can meet one of the grounds for obtaining an annulment. (If you’re interested, the shortest marriage I’ve seen so far lasted two days. And they still had to get a divorce because they did not meet the above criteria for obtaining an annulment.)

by Carolyn Chambers, Associate at Gelman & Associates
This article first appeared in Eligible Magazine (March 13, 2016)

Written by Lisa Gelman

Senior Lawyer

Senior Lawyer Lisa Gelman has over 25 years of family law experience and founded Gelman & Associates to provide strategic legal counsel in family law matters concerning divorce, parenting, separation, and more.

Frequently Asked Questions - divorce & separation

If you or your spouse are not in Canada, you can not get a divorce. However, you can end your marriage under the Civil Marriage Act. You can only end your marriage in Canada and not another country because your marriage is only valid in Canada.

Yes, you can date while separated in Canada. However, there is a legal implication to that. If the timing of your new relationship comes into question during your divorce, your relationship may be considered as an affair or adultery.

Yes. Our legal services are available in person, online, and over the phone. In addition, although our main office is located in Toronto, we have over 8 additional satellite offices located throughout central, southern, western, and eastern Ontario to serve family law clients across the province.

If you are litigating your matter, social media posts made by your spouse or partner may be relevant, especially if they contradict what your spouse is claiming in his or her pleadings.

For example, if a spouse is claiming financial hardship, a Facebook post that shows that spouse going on an expensive trip or posing with an expensive car can undermine such claim and potentially affect that party’s credibility in court if presented as evidence on a motion or at trial.

Further to photograph-based posts, statements that are made on social media by one party can be relevant if said posts (i) are related to the litigation, to issues of parenting and/or (b) contradict statements that were made by the party in his or her pleadings. For example, if a party is attempting to establish that he or she is an appropriate custodial parent, then recent social media posts about extensive partying and drug use made by that party may be relevant in court, as they may speak to that party’s fitness when it comes to appropriate supervision of a child in his or her care.

Yes, you can separate from your spouse. Separation does not have to lead to divorce. However, if you plan to remarry, you must file for divorce after one year of separation. Also, you may want to consider that if you just leave, your spouse may file for spousal support or child support.

It is advised however that before leaving, you try to have a separation agreement with your spouse.

Divorce can be a difficult decision to make, especially if you’re unsure if your partner will sign the petition. However, a divorce does not require your partner’s consent. Although it may be a long process if your partner doesn’t comply, they will not be able to stop you indefinitely.

The only ground for a divorce in Canada’s Divorce Act is marriage breakdown. This could include spousal infidelity, although infidelity alone could be difficult and emotionally taxing to prove in court.

You are not legally required to retain a lawyer to apply for divorce. However, a divorce application may involve important questions about parenting, support, property and procedural requirements. Independent legal advice can help you understand how a proposed agreement or court application may affect you.

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